The graph shows the expenditures on cell phone services and the residential services of US between 2000 and 2010 annually.

The graph illustrates the costs on cell phone and US residential ones during 10 years after 2000 every year. It is perfectly dominant that cell phone services ‘ expenditure rises immediately and ridiculously. Nevertheless, residential one is going to dive down smoothly. In the prior 4 years, cell phone expenditure for a nation is betwixt dollars 200 and 400. In 2001 and its following one differ for 100 dollars. And later, it takes two years to have an increase for 100 dollars. So, 2003 is a year of inflection. After 2004 had elapsed, the curves perform as 45 degree margin and hits the dollars of 600 in 2007. This was the first time that jumps over the residential services. In 2008 to 2010, of course, it rose steadily and won the goal of dollars 750. This record broke the residential highest costs a little bit more hyper. As the native phone service faded gradually, however, it still played more vital role than the other for first 5 years. On hitting 2006, the two costs met equally at 550 dollars. Later that years, albeit, it slowed down but the gap between the twos were not as huge as the space for the earlier years. The adaptation present in the first three years of a twenty-first century was the residential one. Then, it falls down 100 dollars for two years; the cell phone service levels up speedily and vividly. Task 2